Medium

Disclaimer: NTA forgot to print the common data for Questions 31–33 in the candidate response sheet. We reverse-engineered the data based on student memory, so the table below is not the original NTA data. Values are in units of ₹10,000. | Year | X | Y | Z | |---|---:|---:|---:| | 2017 | 173 | 191 | 150 | | 2018 | 163 | 187 | 190 | | 2019 | 247 | 263 | 249 |

If expenditure of businessmen X, Y, Z decreased by 5%, 10% and 15%, respectively, from 2019 to 2020, then what was the total expenditure (in ₹10,000) of X, Y and Z in 2020?

695

656

667

683

✅ Correct Option: 4

Apply the three percentage decreases separately to the 2019 expenditures. | Businessman | 2019 expenditure | Decrease | 2020 expenditure | |---|---:|---:|---:| | X | 247 | 5% | $247\times0.95=234.65$ | | Y | 263 | 10% | $263\times0.90=236.70$ | | Z | 249 | 15% | $249\times0.85=211.65$ | Total 2020 expenditure: $234.65+236.70+211.65=683$. Therefore, the total expenditure was 683 units of ₹10,000.

Question 32

If Z's income in 2017 was ₹17,55,000, what was his percent profit in that particular year?

Question 33

If the percent profit earned by all the businessmen together in 2018 was 37%, what was the total income (in ₹ 1,000) of all the businessmen together in that particular year?

If expenditure of businessmen X, Y, Z decreased by 5%, 10% and 15%, respectively, from 2019 to 2020, then what was the total expenditure (in ₹10,000) of X, Y and Z in 2020?

Solution

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